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It has come to the authors' attention that there is an error in Figure 4. Specifically, the line colors used in the LRP waveforms are not consistent with what is indicated in the legend. The authors sincerely apologize for the error. This error has been corrected in the revised figure.

FIGURE 4

Figure 4. LRP waveforms for directional (blue) and non-directional (red) conditions in target-locked (left) and response-locked (right) LRP waveforms following active (i.e., anodal tDCS) and sham for (A) young and (B) old adults.

It is important to note that this error does not impact the conclusions of the article in any way, but may confuse readers as the direction of effects depicted in the original figure do not match the text.

Conflict of Interest Statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.